first_attempt #1283

dantesworld · 2025-01-22T12:11:48Z

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mateacademy-ai-mentor

Thank you for your hard work on this project! 🎉 While your code meets many of the task requirements, there are a few critical issues that need to be addressed before we can approve the pull request. Specifically, the PurchaseOperation class should check for negative balances and throw a RuntimeException if necessary. Additionally, exception handling in FileWriterImpl should be improved by including the exception object for better error tracking. Please also ensure that file paths are relative and that the package structure aligns with the checklist. Once these issues are resolved, your code will be in great shape! Keep up the great work! 🚀

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🔄 Fix the issues, commit the changes, and then re-request my review using the Re-request review button in the Reviewers tab.

mateacademy-ai-mentor

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mateacademy-ai-mentor

Great job on addressing the previous review comments and aligning your code with the task requirements! 🎉 Your implementation is well-structured, and the package organization is on point. Here are a few key points from the review:

PurchaseOperation Class: You've successfully implemented a check for negative balances, throwing a RuntimeException when necessary. This is crucial for maintaining data integrity during purchase operations.
FileWriterImpl Class: The improvement in exception handling by including the exception object in the RuntimeException is a significant enhancement for error tracking.
Relative File Paths: Using relative paths ensures that your project is accessible and runnable by anyone, which is a great practice.
Package Structure: Your classes are well-organized into appropriate packages, which enhances the readability and maintainability of your code.

While the code meets the task requirements, remember to address any critical issues in future projects to avoid similar problems. For instance, ensure that exception handling in all classes, such as FileReaderImpl, includes the exception object for detailed error information. This will help you provide more context about errors and improve debugging.

Keep up the great work, and continue learning from these experiences to enhance your coding skills! 🚀

✨ Please rate this review in the Platform's notification center. I will be grateful for your feedback! ✨

mateacademy-ai-mentor · 2025-01-22T14:23:50Z

src/main/java/core/basesyntax/dao/FileReaderImpl.java

+        } catch (IOException e) {
+            throw new RuntimeException("Error reading file: " + fileName);


The exception handling here should include the exception object e in the RuntimeException to provide more detailed error information. Modify the line to: throw new RuntimeException("Error reading file: " + fileName, e);

liliia-ponomarenko

Good job! Let’s improve your solution ;)

liliia-ponomarenko · 2025-01-23T07:28:01Z

src/main/java/core/basesyntax/dao/FileReaderImpl.java

+import java.util.ArrayList;
+import java.util.List;
+
+public class FileReaderImpl implements FileReaderMy {


Suggested change

public class FileReaderImpl implements FileReaderMy {

public class CustomFileReaderImpl implements CustomFileReader {

liliia-ponomarenko · 2025-01-23T07:28:33Z

src/main/java/core/basesyntax/dao/FileWriterImpl.java

+import java.io.BufferedWriter;
+import java.io.IOException;
+
+public class FileWriterImpl implements FileWriterMy {


liliia-ponomarenko · 2025-01-23T07:29:19Z

src/main/java/core/basesyntax/dao/FileWriterImpl.java

+        try (BufferedWriter bufferedWriter = new BufferedWriter(new java.io.FileWriter(fileName))) {
+            bufferedWriter.write(info);
+        } catch (IOException e) {
+            throw new RuntimeException("Impossible to write in this file " + fileName, e);


Suggested change

throw new RuntimeException("Impossible to write in this file " + fileName, e);

throw new RuntimeException("Can’t write file with path: " + fileName, e);

Make the message more formal

liliia-ponomarenko · 2025-01-23T07:29:54Z

src/main/java/core/basesyntax/model/ReportGeneratorImpl.java

+
+    @Override
+    public String getReport(Map<String, Integer> storage) {
+        StringJoiner report = new StringJoiner("\n");


better use System.lineseparator()

liliia-ponomarenko · 2025-01-23T07:30:31Z

src/main/java/core/basesyntax/model/ReportGeneratorImpl.java

+        report.add("fruit,quantity");
+
+        for (Map.Entry<String, Integer> entry : storage.entrySet()) {
+            report.add(entry.getKey() + "," + entry.getValue());


make header and separator constant fields

liliia-ponomarenko · 2025-01-23T07:31:35Z

src/main/java/core/basesyntax/model/converter/DataConverterImpl.java

+        inputReport.stream()
+                .skip(1L)
+                .map(line -> line.split(","))
+                .filter(parts -> parts.length == 3)


you should throw an exception for invalid data

liliia-ponomarenko · 2025-01-23T07:33:04Z

src/main/java/core/basesyntax/model/handler/BalanceOperation.java

+
+public class BalanceOperation implements OperationHandler {
+    @Override
+    public void handle(Map<String, Integer> storage, FruitTransaction transaction) {


Storage imitates real databases. So create a Storage class with a public static map

liliia-ponomarenko · 2025-01-23T07:33:22Z

src/main/java/core/basesyntax/model/handler/BalanceOperation.java

+    public void handle(Map<String, Integer> storage, FruitTransaction transaction) {
+        storage.put(transaction.getFruit(), transaction.getQuantity());


Suggested change

public void handle(Map<String, Integer> storage, FruitTransaction transaction) {

storage.put(transaction.getFruit(), transaction.getQuantity());

public void handle(FruitTransaction transaction) {

Storage.storage.put(transaction.getFruit(), transaction.getQuantity());

liliia-ponomarenko · 2025-01-23T07:34:33Z

src/main/java/core/basesyntax/model/strategy/OperationStrategyImpl.java

+
+    @Override
+    public OperationHandler getOperationHandler(FruitTransaction.Operation operation) {
+        return operationHandlers.get(operation);


better check that strategy return handler

liliia-ponomarenko · 2025-01-23T07:35:35Z

src/main/java/core/basesyntax/service/ShopServiceImpl.java

+    }
+
+    @Override
+    public Map<String, Integer> process(List<FruitTransaction> transactions) {


Suggested change

public Map<String, Integer> process(List<FruitTransaction> transactions) {

public void process(List<FruitTransaction> transactions) {

use Storage

dantesworld added 2 commits January 22, 2025 14:10

first_attempt

81613ec

second_attempt

2ef4a44

mateacademy-ai-mentor suggested changes Jan 22, 2025

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third_attempt

792d2f3

dantesworld requested a review from mateacademy-ai-mentor January 22, 2025 13:09

mateacademy-ai-mentor reviewed Jan 22, 2025

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dantesworld requested a review from mateacademy-ai-mentor January 22, 2025 13:37

changed requsted moments

cf778d7

mateacademy-ai-mentor approved these changes Jan 22, 2025

View reviewed changes

added exception object "e"

7917cd7

liliia-ponomarenko suggested changes Jan 23, 2025

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refactored with requested chenges

f29914c

dantesworld requested a review from liliia-ponomarenko January 23, 2025 11:37

dantesworld added 2 commits January 23, 2025 13:41

refactored with requested chenges, storage included

8024732

refactored because of Maven error

92aae01

Elena-Bruyako approved these changes Jan 23, 2025

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first_attempt #1283

first_attempt #1283

dantesworld commented Jan 22, 2025

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		} catch (IOException e) {
		throw new RuntimeException("Error reading file: " + fileName);

	public class FileReaderImpl implements FileReaderMy {
	public class CustomFileReaderImpl implements CustomFileReader {

	throw new RuntimeException("Impossible to write in this file " + fileName, e);
	throw new RuntimeException("Can’t write file with path: " + fileName, e);

		public void handle(Map<String, Integer> storage, FruitTransaction transaction) {
		storage.put(transaction.getFruit(), transaction.getQuantity());

	public Map<String, Integer> process(List<FruitTransaction> transactions) {
	public void process(List<FruitTransaction> transactions) {

first_attempt #1283

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first_attempt #1283

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dantesworld commented Jan 22, 2025

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